51322547685 has 16 divisors (see below), whose sum is σ = 82468511424. Its totient is φ = 27254547072.

The previous prime is 51322547677. The next prime is 51322547687. The reversal of 51322547685 is 58674522315.

It is not a de Polignac number, because 51322547685 - 2³ = 51322547677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51322547687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7338787 + ... + 7345776.

It is an arithmetic number, because the mean of its divisors is an integer number (5154281964).

Almost surely, 2^51322547685 is an apocalyptic number.

It is an amenable number.

51322547685 is a deficient number, since it is larger than the sum of its proper divisors (31145963739).

51322547685 is a wasteful number, since it uses less digits than its factorization.

51322547685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14684804.

The product of its digits is 2016000, while the sum is 48.

The spelling of 51322547685 in words is "fifty-one billion, three hundred twenty-two million, five hundred forty-seven thousand, six hundred eighty-five".